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Many people do not know how to set the pressure of the top bolt on the laboratory mixer when operating it. Below, World Research Instruments will give you a brief introduction,.

For an internal mixer, mixing different types of glue, different times, temperatures, and pressures are similar.

1、 Increasing the pressure of the upper top bolt on the rubber material can increase the fluid static pressure in the rubber material. Although it does not directly affect shear stress, it reduces the gap between the rubber material in the mixing chamber, allowing for faster contact and compression between the rubber material and the walls, rotor, upper and lower top bolts, as well as between various materials inside the rubber material, accelerating the process of mixing various materials into the rubber material, thereby shortening the mixing time and improving the efficiency of the mixing machine.

2、 Increasing the pressure of the lower top bolt allows for faster contact and compression between materials, and increases the contact area between materials, thereby reducing the sliding between the rubber material and the inner wall of the mixing chamber and the surface of the rubber material and the rotor. This can indirectly lead to higher shear stress, accelerate the dispersion process, shorten the mixing time, and improve the quality of the mixed rubber.

Finally, the manufacturer of the Shiyan plastic extruder reminds everyone that while adjusting the top bolt pressure, attention should also be paid to the mixing temperature of the Dongguan internal mixer, and attention should be paid to modifying the existing mixing process.

If you would like to have a more detailed understanding of the relevant knowledge about internal mixers and laboratory internal mixers, please feel free to contact our customer service personnel.